Predicted to enable arylsulfatase activity and steryl-sulfatase activity. Predicted to be involved in several processes, including response to estrogen; response to pH; and response to peptide hormone. Predicted to act upstream of or within female pregnancy and steroid metabolic process. Predicted to be located in endoplasmic reticulum membrane and nuclear envelope. Predicted to be integral component of membrane. Is expressed in several structures, including central nervous system; sensory organ; skeleton; skin; and spleen. Human ortholog(s) of this gene implicated in X-linked ichthyosis. Orthologous to human STS (steroid sulfatase). [provided by Alliance of Genome Resources, Apr 2022]